Please help me with my sons maths homework as i cant do it!!

[pinkheart]

ds1 has some maths home work , which im stuck on, it seems easy and i thought it would be fun but i cant get close to the answer his teacher has given! (he is in yr 6)

So, he has been given the numbers 75, 10, 88, 72 and has to use them to get to 648.
he can use and equations i can get to 708 but cannot get lower!!

(im quite ashamed as im now doing Mlevel study and cant do yr 6 maths!! )

75 10 88 72

ds has got 646:

75 times 10 minus (88-72=16) = 646

Are you sure?

same 646

nope, still working it out

Got 650 so far

ok im not getting that?
if i put (75x10)-(88-72) in i get = 734
or am i doing it wrong?
its closer than i got i got to 733 though..

72 x 10 = 720
-72 = 648

Are you assuming you have to use all the numbers, or is it in the instruction?

ok, i just quizzed him again, he says he did write them down right (im not sure im believing him though!) but he says you dont have to use all the numbers !
boys! dont tell you everything
thankyou for your help so far

Erm Pinkheart......

Isn't 648 good enough for you?

sorry catinthehat, he says he cant use the same number twice, but if he does (72x10)-75=645 thats close?,
sorry wasnt ignoring you, not refreshing page!

surely you can only use each number once though

75x10 =750
-(88+72) =590
+75 =665
-10 =655
-10 =645

• (75 - 72)= 648

according to ds!

he has to hand it in tomorrow,
he was meant to have done this monday but did something else instead, hence why hes still up but will be in bed at 9 as soon as he has finished writing
thankyou all for helping me!

oh! he's looking again....

(88-10-75)**2 x 72

Well done claig.
Was almost there - you beat me to it.

They do DO squares, don't they?